After several years of using this camera I finally decided to write a review. The Low Light Capability was my primary concern when choosing this camera and it delivers! Bottom line is that it falls just short of being my dream camera...I primarily shoot in available light or as one famous photographer put it, "available darkness". I got frustrated with and gave up on film because nothing could deliver decent quality at ISO 3200 which is my most frequent requirement. It took a long time for digital quality to exceed film quality but this camera delivers. I have even gotten usable results at ISO 12800.Fuji is known for it's colors and this camera lives up to that reputation. It did take me quite a bit of trial and error tweaking of settings -- there are many to choose from -- but I love the results. Even in extreme lighting conditions is does a great job of rendering colors and skin tones.It's also compact and light weight compared to a full-frame camera. The IBIS stabilization is good too.I have owned several Cannon cameras and each one has promised better auto-focus than ever before and each one has done what I felt was a really poor job of auto-focus. So much so that after my last Cannon camera I decided that I would not ever be buying any more cameras from them because I couldn't trust any claims being made by Cannon.Fuji on the other hand, for the most part does an excellent job of auto-focus. I did find that eye-tracking was unusable when there were multiple subjects in the frame because focus would flip randomly between the different people, this was especially unusable when doing video. But area focus works very well in all lighting conditions. In all fairness deciding which person to focus on is a hard problem to solve. My complaint is that once it has picked someone it ought to stay with that person not randomly choose to focus on someone else, especially while doing video. However some of this could also be my lack of knowledge, this camera has so many different settings and abilities perhaps there is a way to modify this behavior that I have not figured out yet. But I found it is easier just to not use eye-tracking, the other focus methods give me what I need.I primarily bought this camera for still photography and for that purpose it delivers in spades. The low light capability, stabilization and the color rendition in particular make this my dream camera.But then I ended up doing a lot of video that I had not anticipated and that is where this camera falls down. But it is not the camera body that is the problem it is the lenses that are not suitable for video.Maybe if I sprung for a "cinema" lens $$$ things would be different. I do most of my shooting with Fujinon XC50-230mm lens because this zoom range covers about 90% of what I need (event photography) and the image quality is pretty darn good especially for the price. The problem is that Fuji conceals the fact that most of it's lenses are "Vari-Focal". If you dig around on the Fuji website you will find where they explain that lens design is a series of compromises (true) and that by creating a "Vari-Focal" lens they feel that they can deliver better image quality. The problem is that this sucks for doing video and Fuji won't tell you which lenses are NOT "Vari-Focal" but they seem to imply that most of their lenses are.What is "Vari-Focal" and why does it suck? Prior to Fuji I had not ever encountered it so it came as quite a surprise to me. When you focus a zoom lens on a subject and then you zoom the lens, with a Fixed Focus lens as you zoom the focus does not change and the subject stays in focus. This is very useful when doing manual focus of a still image because you can zoom all the way in set your focus and then pull back and re-frame and your focus will stay tack sharp. But with a "Vari-Focal" lens as you zoom the focus shifts, it does not stay constant, you must refocus at every change in zoom position. It turns out that a Fixed Focus lens is a lot harder to create which adds both to the cost and the weight, so Fuji mostly does not do that and won't tell you this either.For still photography and with auto-focus enabled you mostly won't even notice the difference. And in some situations with video and auto-focus enabled the focus will be okay as you zoom. But there are multiple scenarios when shooting video that "Vari-Focal" is simply not okay. Perhaps there are work-arounds that I have not learned yet... but I find it to be a great hindrance... one that has me wishing for something different.Another issue with the XC50-230mm lens is that it takes great effort to get it to zoom smoothly and even with that effort it is still a bit jumpy. For still photos this is a non-issue, but for video it is a huge pain. Once again I have not seen any lens reviews that tell you how smoothly a lens will zoom, you don't learn this until after you buy it.And finally it is somewhat annoying that the XT4 limits you to 29 minutes of video recording. After that it silently stops recording and if you are not paying attention to this rather critical fact you end up in a world of hurt. There are many EXCUSES for why this camera and many other cameras do this but in reality there is ZERO Technical reason for not allowing continuous recording beyond the 29 minute limit. Many people including myself solve this problem by using an external recorder. But note that when recording externally the video's auto-focus behavior changes.So in summary: I do use this camera quite a bit for video but find that it is just barely adequate for the job. Perhaps if I owned a much more expensive/different lens my opinion would be different since this is mostly a limitation of the lens and not of the body. However for still photography it is absolutely wonderful!Disclaimer: I paid full price for this camera and lenses and nobody tried to influence my opinion. I put a lot of effort into these reviews, if you found this review helpful please do click the like button.